Double-hemisphere world map. The world at a time of increasing geographic knowledge and evolving political borders. In North America, the United States is named and confined along the eastern seaboard. The entire western region is blank with the only place name being Cape Mendocino. There is a large group on islands in the North Pacific including Alaschka in the vicinity of what we now know to be Alaska. Tasmania is attached to Australia; both islands in New Zealand are depicted.